Tennant T17 Series Operating and installation instructions

Service Information Manual
9020167
T17
*9020167*
Rider Scrubber
Rev. 00 (6-2014)
(Battery)
North America / International
To view, print or download
the latest parts or operator’s
manual, visit:
ww
w
.tennantco.com/manuals
The Safe Scrubbing AlternativeR
TennantTrueRParts
IRISta Tennant Technology

INTRODUCTION
This manual providesnecessary service and maintenance instructions.
Read thismanual completely and understand
the machine before servicing it.
This machinewill provide excellent service. However, the best results will be obtained at minimum costs if:
SThe machine is operated with reasonable care.
SThe machine is maintained regularly-per the machine maintenance instructions provided.
SThe machine is maintainedwith manufacturer supplied or equivalentparts.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials,
old machine components and fluids in
an environmentally safe way according
to local waste disposal regulations.
Always remember to recycle.
ModelNo. --
SerialNo. --
InstallationDate --
Please fillout at time of installation for future reference.
MACHINE DATA
INTENDED USE
The T17 is an industrial/commercial rider machinedesigned to wet scrub both roughand smooth hard surfaces
(concrete, tile, stone, synthetic, etc). Typical applicationsinclude schools, hospitals / health care facilities, office
buildings, and retail centers. Do not use this machine on soil, grass, artificial turf, or carpeted surfaces. This machine
is intended for indoor use only. This machine is notintended for use on public roadways.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763)513--2850
www.tennantco.com
Touch--N--Go, 1--STEP, Grip--N--Go, Dura--Track, SmartRelease, Duramer, are US registered andunregistered trademarks of Tennant Company.
Flow-Rite is a registered trademark of Flow-Rite Controls
Specificationsandparts are subject to change withoutnotice.
Original Instructions, copyrightE2014 TENNANT Company, Printed in U.S.A.

T17 Service Information 9020167 (6-14) 3
CONTENTS
Safety PrecautionS .......................1-1
General information
COMPONENT LOCATOR.................... 22
ELECTRICAL SCHEMATIC, MASTER ......... 24
ELECTRICAL SCHEMATIC SYMBOLS ..... 27
OPERATIONAL MATRIX..................... 28
SPECIFICATIONS ..........................215
FASTENER TORQUE ....................215
MACHINE DIMENSIONS................216
GENERAL MACHINE DIMENSIONS/
CAPACITIES .........................217
GENERAL MACHINE PERFORMANCE ...218
POWER TYPE ..........................218
TIRES ..................................215
SCRUBBING SIDE BRUSH SOLUTION
FLOW RATE (OPTION) ...............2-19
ECH2O SYSTEM OPTION.............219
ELECTRICAL COMPONENTS............220
maintenance
MAINTENANCE CHART..................... 33
YELLOW TOUCH POINTS ................... 35
LUBRICATION.............................. 35
BATTERIES ................................. 36
CIRCUIT BREAKERS, FUSES, AND RELAYS ..311
ELECTRIC MOTORS .......................312
SCRUB BRUSHES..........................313
PRESWEEP BRUSHES .....................318
SQUEEGEE BLADES .......................321
SKIRTS AND SEALS........................332
BELTS ..................................334
BRAKES ..................................334
TIRES ..................................334
PUSHING, TOWING, AND TRANSPORTING
THE MACHINE .........................335
MACHINE JACKING .......................338
ec-H2O MODULE FLUSH PROCEDURE .....339
STORAGE INFORMATION..................341
FREEZE PROTECTION .....................341
PREPARING THE MACHINE FOR
OPERATION AFTER STORAGE ..........343
PRIMING THE ECH2O SYSTEM ............3-44
troubleShootinG
ONBOARD DIAGNOSTICS .................. 42
SELFTEST MODE ....................... 42
CONFIGURATION MODE ................ 44
LCD WARNINGS......................... 46
LCD FAULTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
PROPEL DIAGNOSTIC MODE ...........411
CURTIS 1234 CONTROLLER
DIAGNOSTICS ......................413
Contents Page
DIAGNOSTIC LED OPERATION. . . . . . . 413
DIAGNOSTIC CODES ................414
INPUT DISPLAY MODE .................422
MANUAL MODE .......................424
CAN CONTROLLER AREA NETWORK
DIAGNOSTIC MODE.................426
MOTORS MODE........................427
STATUS LED  POWER
STEERING OPTION.................429
SUBSYSTEM TROUBLESHOOTING .........430
BACKUP ALARM/LIGHT ...............430
LIGHTING..............................432
MAIN SCRUB BRUSHES ................434
SIDE SCRUB BRUSH ....................436
POWERUP ............................438
PROPEL................................440
REAR SQUEEGEE LIFT ..................442
SCRUB HEAD LIFT .....................444
SIDE SWEEP BRUSHES .................446
SIDE SWEEP BRUSH LIFT ...............450
SOLUTION CONTROL, CONVENTIONAL 452
MAIN BRUSH .......................452
SIDE BRUSH ........................454
SOLUTION CONTROL, ECH2O ..........456
SEVERE ENVIRONMENT  SPOT
CLEANING ..........................458
ES EXTENDED SCRUB
DETERGENT PUMP..................460
WATER PUMP .......................462
SPRAY NOZZLE ........................464
VACUUM FAN..........................466
Service
SERVICE PROCEDURES..................... 52
REAR SQUEEGEE LIFT ACTUATOR ....... 52
REMOVAL............................ 52
INSTALLATION ....................... 53
ROD ADJUSTMENT .................. 53
SIDE BRUSH LIFT ACTUATOR ............ 54
REMOVAL............................ 54
INSTALLATION ....................... 55
ADUSTING SIDE BRUSH
SPRING TUBE ASSEMBLY........... 55
VACUUM FAN ASSEMBLY ............... 56
REMOVAL ........................... 56
INSTALLATION ....................... 57
SIDE BRUSH MOTOR .................... 58
REMOVAL............................ 58
INSTALLATION ....................... 59
MAIN BRUSH LIFT ACTUATOR..........510
REMOVAL...........................510
INSTALLATION ......................511
Contents Page

CONTENTS
4T17 Service Information 9020167 (6-14)
MAIN SCRUB HEAD ....................512
REMOVAL...........................512
INSTALLATION ......................513
MAIN SCRUB BRUSH MOTOR
CYLINDRICAL .....................514
REMOVAL ........................514
INSTALLATION. . . . . . . . . . . . . . . . . . . . 515
INSTRUMENT PANEL...................516
REMOVAL...........................516
INSTALLATION ......................516
LOGIC BOARD REPLACEMENT. . . . . . . . . . 517
REMOVAL...........................517
INSTALLATION ......................518
STEERING WHEEL TIMING..............519
WHEEL DRIVE ASSEMBLY ..............520
REMOVAL...........................520
INSTALLATION ......................521
TIRE REPLACEMENT.................522
REAR BRAKE ADJUSTMENT ............523
COMPONENT TESTING....................524
RECOVERY TANK LEVEL SENSORS ......524
SOLUTION TANK LEVEL SENSOR .......526
PROPEL MOTOR AND ENCODER ......528
PROPEL MOTOR CABLES ...............530
THROTTLE SENSOR ....................532
SIDE BRUSH LIFT ACTUATOR ...........534
MAIN BRUSH LIFT ACTUATOR..........535
REAR SQGE LIFT ACTUATOR. . . . . . . . . . . . 536
VACUUM FAN..........................537
SIDE SWEEP BRUSH MOTOR ...........538
ECH2O PUMP .........................539
ECH2O PRESSURE SWITCH ............540
Contents Page

T17 Service Information 9020167 (6-14) 1-1
SAFETY PRECAUTIONS
IMPORTANT SAFETY INSTRUCTIONS − SAVE THESE INSTRUCTIONS
The following precautions are used throughout
this manual as indicated in their description:
WARNING: To warn of hazards or
unsafe practices that could result in
severe personal injury or death.
FOR SAFETY: To identify actions that must be
followed for safe operation of equipment.
The following information signals potentially
dangerous conditions to the operator. Know when
these conditions can exist. Locate all safety
devices on the machine. Report machine damage
or faulty operation immediately.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep
sparks and open flame away. Keep
covers open when charging.
WARNING: Flammable materials can
cause an explosion or fire. Do not use
flammable materials in tank(s).
WARNING: Flammable materials or
reactive metals can cause an explosion
or fire. Do not pick up.
WARNING: Electrical Hazard
−Disconnect Battery Cables and
Charger Plug Before Servicing
Machine.
−Do Not Charge Batteries with
Damaged Power Supply Cord. Do Not
Modify Plug.
If the charger supply cord is damaged or
broken, it must be replaced by the
manufacturer or its service agent or a
similarly qualified person in order to avoid a
hazard.
This machine may be equipped with
technology that automatically communicates
over the cellular network. If this machine will
be operated where cell phone use is restricted
because of concerns related to equipment
interference, please contact a Tennant
representative for information on how to
disable the cellular communication
functionality.
FOR SAFETY:
1. Do not operate machine:
−Unless trained and authorized.
−Unless operator manual is read and
understood.
−Under the influence of alcohol or
drugs.
−While using a cell phone or other
types of electronic devices.
−Unless mentally and physically
capable of following machine
instructions.
−With brake disabled.
−If it is not in proper operating
condition.
−With pads or accessories not supplied
or approved by Tennant. The use of
other pads may impair safety.
−In outdoor areas. This machine is for
indoor use only.
−In areas where flammable
vapors/liquids or combustible dusts
are present.
−In areas that are too dark to safely see
the controls or operate the machine
unless operating / headlights are
turned on.
−In areas with possible falling objects
unless equipped with overhead guard.
−With the rear bumper door / step in the
lowered position.
2. Before starting machine:
−Check machine for fluid leaks.
−Make sure all safety devices are in
place and operate properly.
−Check brakes and steering for proper
operation.
−Adjust seat and fasten seat belt (if
equipped).

1-2 T17 Service Information 9020167 (6-14)
SAFETY PRECAUTIONS
3. When using machine:
−Use only as described in this manual.
−Use brakes to stop machine.
−Go slowly on inclines and slippery
surfaces.
−Do not scrub on ramp inclines that
exceed 8.7% grade or transport
(GVWR) on ramp inclines that exceed
12% grade.
−Reduce speed when turning.
−Keep all parts of body inside operator
station while machine is moving.
−Always be aware of surroundings
while operating machine.
−Use care when reversing machine.
−Keep children and unauthorized
persons away from machine.
−Do not carry passengers on any part
of the machine.
−Always follow safety and traffic rules.
−Report machine damage or faulty
operation immediately.
−Follow mixing, handling and disposal
instructions on chemical containers.
−Follow site safety guidelines
concerning wet floors.
4. Before leaving or servicing machine:
−Stop on level surface.
−Set parking brake.
−Turn off machine and remove key.
5. When servicing machine:
−All work must be done with sufficient
lighting and visibility.
−Keep work area well ventilated.
−Avoid moving parts. Do not wear loose
clothing, jewelry and secure long hair.
−Block machine tires before jacking
machine up.
−Jack machine up at designated
locations only. Support machine with
jack stands.
−Use hoist or jack that will support the
weight of the machine.
−Do not push or tow the machine
without an operator in the seat
controlling the machine.
−Do not power spray or hose off
machine near electrical components.
−Disconnect battery connections and
charger cord before working on
machine.
−Do not use incompatible battery
chargers as this may damage battery
packs and potentially cause a fire.
−Inspect charger cord regularly for
damage.
−Do not disconnect the off−board
charger’s DC cord from the machine
receptacle when the charger is
operating. Arcing may result. If the
charger must be interrupted during
charging, disconnect the AC power
supply cord first.
−Avoid contact with battery acid.
−Keep all metal objects off batteries.
−Use a non−conductive battery removal
device.
−Use a hoist and adequate assistance
when lifting batteries.
−Battery installation must be done by
trained personnel.
−Follow site safety guidelines
concerning battery removal.
−All repairs must be performed by a
trained service mechanic.
−Do not modify the machine from its
original design.
−Use Tennant supplied or approved
replacement parts.
−Wear personal protective equipment
as needed and where recommended in
this manual.
For Safety: wear hearing protection.
For Safety: wear protective gloves.
For Safety: wear eye protection.
For Safety: wear protective dust mask.
6. When loading/unloading machine
onto/off truck or trailer.
−Drain tanks before loading machine.
−Lower scrub head and squeegee
before tying down machine.
−Turn off machine and remove key.
−Use ramp, truck or trailer that will
support the weight of the machine and
operator.
−Do not load/unload on ramp inclines
that exceed 21% grade.
−Use winch. Do not push the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
−Block machine tires.
−Tie machine down to truck or trailer.

T17 Service Information 9020167 (6-14) 1-3
SAFETY PRECAUTIONS
The safety labels appear on the machine in the
locations indicated. Replace damaged labels.
FOR SAFETY LABEL −
Do not operate
machine with rear
bumper door / step in
the lowered position.
Do not carry
passengers on any
part of the machine.
WARNING LABEL −
Batteries emit hydrogen
gas. Explosion or fire can
result. Keep sparks and
open flame away. Keep
covers open when charging.
FOR SAFETY LABEL −
Read manual before
operating machine.
WARNING LABEL −
Flammable materials or
reactive metals can
cause explosion or fire.
Do not pick up.
Located on electrical
panel.
Located on bottom of
recovery tank cover.
WARNING LABEL −
Flammable
materials can
cause explosion or
fire. Do not use
flammable
materials in tank.
FOR SAFETY LABEL −Authorized
Service Mechanic Only.
Located on circuit board cover and
electrical panel.
Located on rear
bumper door / step.
Located on bottom of
battery compartment
cover.
Located on
solution tank
cover and on
detergent tank
(option).

1-4 T17 Service Information 9020167 (6-14)
SAFETY PRECAUTIONS

GENERAL INFORMATION ..................... 21
COMPONENT LOCATOR.................... 22
ELECTRICAL SCHEMATIC, MASTER ......... 24
ELECTRICAL SCHEMATIC SYMBOLS ..... 27
OPERATIONAL MATRIX..................... 28
SPECIFICATIONS ..........................215
FASTENER TORQUE ....................215
MACHINE DIMENSIONS................216
GENERAL MACHINE DIMENSIONS/
CAPACITIES .........................217
GENERAL MACHINE PERFORMANCE ...218
POWER TYPE ..........................218
TIRES ..................................215
SCRUBBING SIDE BRUSH SOLUTION
FLOW RATE (OPTION) ...............2-19
ECH2O SYSTEM OPTION.............219
ELECTRICAL COMPONENTS............220
GENERAL INFORMATION
SECTION 2
Contents Page
2-1
T17 Service Information 9020167 (6-14)

2-2 T17 Service Information 9020167 (6-14)
GENERAL INFORMATION
A
B
C
D
EF G
H
I
K
J
Components
AInterface Module and Touch Panel
BCurtis®AC Propel Controller
CPower Steering Assembly*
DAC Drive Assembly
EIRIS™ Module*
Fec-H2O Pump*
GBLDC (Brushless DC) Brush Motors
HSpray Wand*
IDual Vacuum Fans
JIRIS™ Shunt Assembly*
Kec-H2O Module*
LBackup Alarm/Flashing Light*,
Circuit Breaker #16, M2 Relay
MRecovery Tank Full Switch,
ES Half-Full Switches*
NRear Squeegee Lift Actuator
OBrake Adjustment Rods
PScrub Head Lift Actuator
QBrake Pedal Interlock Switch
RControl Modules, M1 Contactor
Circuit Breakers (1-9)
SSeat Switch
TBattery Rollout Switch
* Optional Equipment
NP
L
O
Q
R
S
A
T
M
COMPONENT LOCATOR

T17 Service Information 9020167 (6-14) 2-3
GENERAL INFORMATION
COMPONENT LOCATOR cont'd)
S
U
V
Z
Y
X
W
AA
BB
CC
FF
EE
DD
Components
UBattery
VDetergent Metering Pump*
WBLDC (Brushless DC) Side Scrub
Brush Motor
XSide Scrub Brush Lift Actuator
YM3 Contactor, Power Steering
Motor Control*
ZThrottle Sensor
AA Pre-Sweep, Hopper Vacuum Duct*
BB Pre-Sweep, Dust Filter Bag
CC Pre-Sweep, Main Sweep Brush
Motor
DD Pre-Sweep, Side Sweep Brush Mo-
tors
EE Pre-Sweep, Hopper
FF Pre-Sweep, Bag Housing Vacuum
Duct
* Optional Equipment

2-4 T17 Service Information 9020167 (6-14)
GENERAL INFORMATION
ISOLATED GROUND
POST = STAND OFF
SCRUB MODULE
USER INTERFACE MODULE
PROPEL SYSTEM
SEAT SWITCH HARNESS
TO: OPTIONAL BACK UP
LIGHT/ALARM HARNESS.
INTERNAL TO AC PROPEL MOTOR
(INCLUDES ENCOCER, TEMP SENDER AND BRAKE SOL.)
WUV
B2: BRN
T2: YEL
T1: YEL
B1: PUR
A+
W1
A-
AC PROPEL MOTOR
PIN OUT
(FACING MOTOR)
AMER
ENCODER
PROPEL MOTOR CONTROL
HARNESS
ORA GRN
WHT
SWITCHED B+
GROUND
CABLE: BATT. TOMACHINE:
M1 TO FUSE-1
BUS BAR
2/RED-TAN
SW-1 KEY SWITCH
SHUNT HIGH
SEE SECTION D7
SHUNT LOW
SEE SECTION D7
IN-LINE (OPTIONAL)
OPTIONAL TELEMETRY CABLES:
DIGITAL GROUND
FOR SPOT CLEAN
INDICATOR LIGHTS
SPOT CLEAN LEDS
INTERNAL TO SW-6
12 11
10 9
LED1
LED2
38A
LONG SPOT CLEAN
SHORT SPOT CLEAN
OPT. POWER STEERING
TO: TELEMETRY
IN-LINE FUSE.
STATIC GROUNDING
#1205906
PIN 30 PIN 15
SV-3
0.5A
0.5A
SCRUB MOTOR HARNESS
OPT. POWER STEERING HARNESS
CABLE: BATT. TOMACHINE
S-11 PARK BRAKE SW. (N.C.H.O.)
LONG SPOT SCRUB
SHORT SPOT SCRUB
( GND. AT INPUT
= ENABLE SPOT SCRUB)
SW-2
E-STOP SWITCH
0.5A
POD HARNESS
M1 TO FUSE-1
BUS BAR
CLOSED = PARK BRAKE SET
S-17: BATT. ROLL OUT (N.C.H.O.) CLOSED = BATT.
ROLLED OUT
#1208907
0.5A
BLK
YEL
17/PUR
BLU
70/TAN
58/GRY
RED
14/YEL
58/GRY
8/GRY
13/BLK: CABLE: POWER/GND TO CURTIS.
YRG/8YRG/8
8/GRY
10/TAN
11/PNK
9/WHT
15/GRN
W/WHT
U/ORA
V/GRN
62/BRN
61/PNK
58/GRY 59/WHT 66/BLU
YEL YEL
YRG/8YRG/8
94/YEL
POWER/GND TO CURTIS.
13/BLK-WHT 79/WHT
13/BLK
58/GRY
61/PNK
99/WHT
2/RED-TAN
13/BLK
38/GRY
113/BLK-WHT113/BLK-WHT
113/BLK-WHT37/PUR
13/BLK
13/BLK
3/ORA
1/RED
1/RED
19/WHT
19/WHT 25/GRN
26/BLU
RED145/GRN 13/BLK
CAN-/GRN
4/YEL
211/PNK
213/BLK-WHT
13/BLK: CABLE13/BLK
1/RED
105/GRN
105/GRN
105/GRN
105/GRN
8/GRY8/GRY
CAN-/GRN
CAN+/YEL
28/GRY
27/PUR
209/WHT
200/TAN
203/ORA
32/BRN
33/ORA
34/YEL
125/GRN
129/WHT
205/GRN
204/YEL
208/GRY
130/TAN
131/PNK
132/BRN
133/ORA
134/YEL
20/TAN
21/PNK19/WHT
19/WHT
19/WHT19/WHT
19/WHT
23/ORA19/WHT
2/RED-TAN
18/GRY
8/GRY
8/GRY
16/BLU: CABLE
145/GRN RED/GRN
ORA
PUR
WHT
36/BLU
35/GRN
7/PUR
CAN+/YEL
24/YEL 17/PUR
5/GRN
6/BLU
6/BLUNAT-DER/22NAT-DER/22
BLK/PAIR #2
WHT/PAIR #2
BLK/PAIR #1
RED/PAIR #1
7/PUR8/GRY
8/GRY
BLK
WHT
GRN
RED
BLK
WHT
GRN
RED
13/BLK
17/PUR118/GRY
58
1715
2
13
CAN-CAN+
94
7913
58
1
6
M1B
MAIN CONTACTOR
MTR-6
LEFT SCRUB MTR
+5VDC
4E
HALL_3
3E
HALL_1
1E
HALL_2
2E
OPEN2
5E
MTR_1/U
1
MTR_2/V
2
MTR_3/W
3
OPEN1
4
GND
6E
4
4
D-1
4
2
5
M3B
AUX1 CONTACTOR
MAIN NO DRIP VALVE
3
A
2
1
4
VAC FAN #2
3
6
PROGRAMMING PORT
GND
2
+12V
4
RX
1
TX
3
3
2
1
36 VDC
+ --
4
6
BLU
BLK
WHT
RED
6
1
SHUNT-1
TELEMETRY SHUNT
MTR_CONTROL
M4
4
M3
3
M1
1
M2
2
SW-6
SPOT CLEAN SW.
12
4
56
8
11 12
9 10
M1A
MAIN CONTACTOR
FRONT CIRCUIT BREAKER PANEL
3
5
1
4
AC PROPEL MOTOR
MTR-1
1
2
53
2
B
1
THROTTLE SENSOR
BRAKE
P1-C
THROTTLE
P1-B
B+
P1-A
GND
P1-D
5
CHASSIS GND. STRAP @ FRAME
1
A
MTR-5
RIGHT SCRUB MTR
+5VDC
4E
HALL_3
3E
HALL_1
1E
HALL_2
2E
OPEN2
5E
MTR_1/U
1
MTR_2/V
2
MTR_3/W
3
OPEN1
4
GND
6E
3
2
FUSE-1
150A-REAR
HORN-1 HORN
P1-1 P2-1
1
4 2
3
CB-4
2.5A-REAR
FUSE-2
100A-REAR
MTR-24
POWER STEERING
MTR-MTR+
SW-3A
FWD/REV SW.
8
6
4
1
5
2
CB-15
15A-FRONT
GND
B+
OUT
P
SW-5
SOL. TANK PRESS.SENSOR
B
C A
4
CB-6 2.5A-REAR
CURTIS 1234 CONTROLLER
KSI
J1-1
DRV2
J1-5
DRV1
J1-6
INTERLOCK
J1-9
I/O GND
J1-7
36VDC
J1-13
BRAKE IN
J1-11
THROTTLE
J1-16
CAN TERM H
J1-21
FWD
J1-22
CAN H
J1-23
+12V
J1-25
PHASE A
J1-31
PHASE B
J1-32
REV
J1-33
CAN TERM L
J1-34
CAN L
J1-35
U
U
V
V
W
W
B+
B+
GND
GND
THERMISTOR
J1-8
DRV3
J1-4
DRV4
J1-3
TX
J1-28
RX
J1-29
E-STOP
J1-10
1
ALARM-1 ALARM
P1-1 P2-1
VAC FAN #1
3
4
2
SCRUB MODULE
B+ POST
P1-1
GND. POST
P2-1
HALF_1
J4-9
HALF_0
J4-10
LT_MTR_1_1
J10-1
LT_MTR_1_2
J10-2
RT_MTR_2_2
J11-5
LT_MTR_1_3
J10-3
FLYBACK
J4-4
MAIN H20 DRIP
J4-17
SHORT_SPOT_LED
J4-11
LONG_SPOT_LED
J4-12
LONG_SPOT
J4-7
HORN
J4-16
AUD. ALARM
J4-15
SPOT_PUMP
J4-14
MAIN_CONT.
J4-13
SOL.SENSOR
J4-1
DIGITAL GND.
J4-3
CAN_+12V
J1-4
CAN GND
J1-3
CAN-
J1-2
RT_MTR_2_1
J11-4
CAN+
J1-1
+12VDC
J4-5
RT_MTR_2_3
J11-6
NOT_USED0
J4-2
SHORT_SPOT
J4-8
KSI
J4-18
NOT_USED1
J4-6
HALL_1_LF
J9-1
HALL_2_LF
J9-2
HALL_3_LF
J9-3
+5VDC_LF
J9-4
GND_LF
J9-5
HALL_1_RT
J9-6
HALL_2_RT
J9-7
HALL_3_RT
J9-8
+5VDC_RT
J9-9
GND_RT
J9-10
6
4
2
POWER STEERING MODULE
GND+36VDC
MTR-
MTR+
SW/B+
LED
CODE_1
CODE_2
M1
1
M2
2
M3
3
M4
4
6
INTERFACE MODULE
DIGITAL_GND
J1-4
+12VDC
J1-1
CAN-
J1-3
CAN+
J1-2
5
MTR-2
DET. PUMP/SPOT CLEAN PUMP
2 1
1
B
2
MTR-3
SCRUB UP/DOWN
21
6
SENDER, TEMP
T2 T1
SW-4: SEAT SWITCH
3
5
M3A
AUX1 CONTACTOR COIL
3
ELECTRICAL SCHEMATIC (1 of 3)

T17 Service Information 9020167 (6-14) 2-5
GENERAL INFORMATION
ELECTRICAL SCHEMATIC (2 of 3)
GROUND
OPTIONAL SIDE SWEEP MODULE
SQGE UP/DN ACTUATOR
LEFT SIDE UP/DN ACT.
OPTIONAL PRE SWEEP MODULE
WATER PICK UP MODULE
PRESWEEP=H2O=SIDE SWEEP
SWEEP UP/DN ACT.
PRESWEEP=H2O=SIDE SWEEP
PRESWEEP=H2O=SIDE SWEEP
FOR (2) PRESWEEP LIGHTS/LEDS
GROUND
RIGHT SIDE UP/DN ACT.
20A
3A
3A
3-5A
3-5A
19A
19A
0.5A
0.5A
NOT LOADED WITH
SIDE SWEEP OPTION
OPT. SIDE SWEEP HARNESS
OPT. PRESWEEP BASE HARNESS
UP = VAC & SWEEP
DN.= SWEEP ONLY
1112
PRESWEEP LIGHT/LED
INTERNAL TO SW-11
LED-4
910
LED-3
FROM: LIGHT SWITCH
1B
2B
3A
4A
1A
2A
3B
4B
5B
6B
7B 8B
OPT. PRESWEEP HEAD HARNESS
OPT. PRESWEEP HEAD HARNESS
( GROUND ON INPUT
= ENABLE FUNCTION)
( GROUND ON INPUT
= ENABLE SIDE SWEEP)
( GROUND ON INPUT
= REC. 1/2 FULL)
( GROUND ON INPUT
= REC. FULL)
18A
3-5A
2/RED-TAN
43/ORA
45/GRN
47/PUR
41/PNK
42/BRN
44/YEL
57/PUR
69/WHT
CAN-/GRN
CAN+/YEL
54/YEL53/ORA
55/GRN
53/ORA
53/ORA
40/TAN OR 40/BLU2/RED-TAN
13/BLK102/BRN
101/PNK 13/BLK
56/BLU2/RED-TAN
2/RED-TAN
13/BLK13/BLK
CAN-/GRN
CAN+/YEL
13/BLK
100/TAN
71/PNK
72/BRN
73/ORA
74/YEL
81/PNK
82/BRN
98/GRY
80/TAN
75/GRN
78/GRY
2/RED-TAN
2/RED-TAN
13/BLK
2/RED-TAN
95/GRN95/GRN
13/BLK
CAN-/GRN
CAN+/YEL
97/GRY
95/GRN 96/BLU
95/GRN 117/PUR
76/BLU
13/BLK
13/BLK
81/PNK
82/BRN
94/YEL
91/PNK
84/YEL
83/ORA
86/BLU
87/PUR
83/ORA
84/YEL
86/BLU
87/PUR
88/GRY
89/WHT 89/WHT
88/GRY
91/PNK
94/YEL
48/GRY
49/WHT
213
CAN+CAN-
CAN+CAN-
13
CAN+CAN-
76
CB-7B
2.5A-REAR
SW-10
PRE SWEEP SWITCH
12
4
56
8
11 12
9 10
OPT. SIDE SWEEP MODULE
B+
J5-1
GND
J5-2
HALF_1
J6-17
HALF_0
J6-18
HALF_2
J7-1
HALF_2B+
J7-2
NOT_USED
J3-4
SHIELD
J3-3
CAN-
J3-2
CAN+
J3-1
FLYBACK
J6-7
INPUT_0
J6-10
INPUT_1
J6-9
HALF_3
J7-3
HALF_5
J6-14
HALF_5B+
J6-13
HALF_3B+
J7-4
HALF_4
J6-16
OUTPUT_0
J6-12
OUTPUT_1
J6-11
GND_DIGITAL
J6-2
SPARE_INPUT1
J6-4
SPARE_INPUT0
J6-3
PCB-SEL_1
J6-1
PCB_SEL_0
J6-8
HALF_4B+
J6-15
LED_DRIVE0
J6-5
LED_DRIVE1
J6-6
CB-1
60A-REAR
MTR-7
VAC FAN #1
2 1
EXTEND LIMIT SW.
RETRACT LIMIT
2
1
MTR-14
1
2
MTR-15
MIDDLE SWEEP MTR
21
N.O.
SW-8
REC. 1/2 TANK FULL (OPT. ES SYSTEM)
A B
RIGHT HEADLIGHT (LED)
LT-6
SW-9A
SIDE SWEEP SW.
8
6
4
1
5
2
MTR-17
LEFT PRESWEEP MTR
2 1
SV-4: AUTO FILL SOL. VALVE
EXTEND LIMIT SW.
RETRACT LIMIT
1
2
MTR-10
2
1
N.O.
SW-7
REC. TANK FULL
A B
WATER PICKUP MODULE
B+
J5-1
GND
J5-2
HALF_1
J6-17
HALF_0
J6-18
HALF_2
J7-1
HALF_2B+
J7-2
NOT_USED
J3-4
SHIELD
J3-3
CAN-
J3-2
CAN+
J3-1
FLYBACK
J6-7
INPUT_0
J6-10
INPUT_1
J6-9
HALF_3
J7-3
HALF_5
J6-14
HALF_5B+
J6-13
HALF_3B+
J7-4
HALF_4
J6-16
OUTPUT_0
J6-12
OUTPUT_1
J6-11
GND_DIGITAL
J6-2
SPARE_INPUT1
J6-4
SPARE_INPUT0
J6-3
PCB-SEL_1
J6-1
PCB_SEL_0
J6-8
HALF_4B+
J6-15
LED_DRIVE0
J6-5
LED_DRIVE1
J6-6
MTR-18
RIGHT PRESWEEP MTR
2 1
EXTEND LIMIT SW.
RETRACT LIMIT
2
1
2
1
MTR-11
LEFT SIDE SWEEP
2 1
MTR-12
RIGHT SIDE SWEEP
2 1
MTR-16
VAC FAN
21
LEFT HEADLIGHT (LED)
LT-7
CB-7A
2.5A-REAR
EXTEND LIMIT SW.
RETRACT
LIMIT SW.
1
2
MTR-13
2
1
CB-3A
20A-REAR
CB-5
2.5A-REAR
MTR-9
ES PUMP
2 1
CB-2
50A-REAR
MTR-8
VAC FAN #2
2 1
PRESWEEP MODULE
B+
J5-1
GND
J5-2
HALF_1
J6-17
HALF_0
J6-18
HALF_2
J7-1
HALF_2B+
J7-2
NOT_USED
J3-4
SHIELD
J3-3
CAN-
J3-2
CAN+
J3-1
FLYBACK
J6-7
INPUT_0
J6-10
INPUT_1
J6-9
HALF_3
J7-3
HALF_5
J6-14
HALF_5B+
J6-13
HALF_3B+
J7-4
HALF_4
J6-16
OUTPUT_0
J6-12
OUTPUT_1
J6-11
GND_DIGITAL
J6-2
SPARE_INPUT1
J6-4
SPARE_INPUT0
J6-3
PCB-SEL_1
J6-1
PCB_SEL_0
J6-8
HALF_4B+
J6-15
LED_DRIVE0
J6-5
LED_DRIVE1
J6-6
SV-5: AUTO FILL REC VALVE

2-6 T17 Service Information 9020167 (6-14)
GENERAL INFORMATION
ELECTRICAL SCHEMATIC (3 of 3)
OPT. SPRAY WAND OPT. LIGHTSOPT. BACK UP
ALARM/LIGHT
SW-16
LOW = FWD. OR REV. (SPECIAL ONLY) LOW = REV.
OPT. LIGHT KIT
STROBE LT.
FLASHING LT.
STROBE LT.
FLASHING LT.
NOT USED
(FOR SPECIALS)
ALL LIGHTS OFF/DN = 2-1, 6-5
WARN. LIGHT ON/CENTER = 2-3, 6-7
HEAD & WARN ON/UP = 3-4, 7-8
OPT. OHG WARNING LIGHT HARNESS
OPT. LIGHT / ALARM HARNESS
LOCATED INSIDE
LIGHT ASSEMBLY
+36VDC FROM CONTROLLER
(ECHO sparger)
(ECHO cell)
EC-H20 FLUSH SW.
OPT. EC-H2O HARNESS
(A) (B)
SW-14
OPT. INTERNAL EC-H2O MODULE HARNESS
ECHO/FAST PUMP
ECHO MODULE
SIDE SCRUB MODULE
SIDE SCRUB BRUSH
SIDE ACTUATOR
0.5A
0.5A
0.5A
2A
SHUNT HIGH
SHUNT LOW
DIRECT TO BATTERY B+
OPT. TELEMETRY HARNESS
OPT. TELEMETRY MODULE
OPT. SIDE SCRUB HARNESS
TO: PRESWEEP HARNESS
( GROUND ON INPUT
= ENABLE SIDE SCRUB)
68/GRY
15/GRN
76/BLU
76/BLU
13/BLK
67/PUR
65/GRN
65/GRN 13/BLK 65/GRN6/BLU
94/YEL
13/BLK
85/GRN-WHT
85/GRN-WHT
13/BLK
90/TAN 15/GRN
93/ORA68/GRY 13/BLK
92/BRN
90/TAN
90/TAN
92/BRN
76/BLU 13/BLK
13/BLK
63/ORA
17/PUR17/PUR
13/BLK64/YEL
64/YEL64/YEL
13/BLK13/BLK
6/BLU
60/TAN
8EA/GRY
7EA/PUR
3EA/ORA
4EA/YEL
2/RED-TAN
46/BLU
13EA/BLK
9EA/WHT
2/RED-TAN 46/BLU
50/TAN 50/TAN
51/PNK46/BLU
52/BRN50/TAN
50/TAN
13/BLK
52/BRN
104/YEL
2/RED-TAN 103/ORA
2/RED-TAN
107/PUR104/YEL
104/YEL
109/WHT
110/TAN
111/PNK
115/GRN
108/GRY
CAN-/GRN
CAN+/YEL
13/BLK
CAN+/YEL
79/WHT
1/RED 77/PUR77/PUR
CAN-/GRN
13/BLK-WHT
112/BRN
KLB/31KLB/31
1/RED
CAN-/GRN
CAN+/YEL
135/GRN
136/BLU
137/PUR
138/GRY
76/BLU
106/BLU
104/YEL 13/BLK
139/WHT
94
6
15
17
2
CAN+CAN- 13
1379
CAN+CAN-
1
76
CB-12
2.5A-FRONT
1
MTR-22
CB-11
15A-FRONT
CB-10
15A-FRONT
M2B
3087
6
CB-14
2.5A-FRONT
+ -
C-1
CAPACITOR, 0.01UF, 200V
3
2
LIGHT SWITCH
56
8
7
12
34
ALARM-2
REVERSE ALARM
P1-1 P2-1
3 3
M2A
OPT. REVERSE RELAY
8586
2
SV-7
ECH20 SIDE BR. VALVE
CB-8
2.5A-REAR
5
SIDE SCRUB MODULE
B+ POST
J5-1
GND. POST
J5-2
SIDE_ACT1
J4-8
SIDE_ACT0
J4-7
MTR_1
J6-1
MTR_2
J6-2
MTR_3
J6-3
FLYBACK
J4-4
NOT_USED0
J4-2
SIDE_PUMP
J4-10
SIDE_H2O_VALVE
J4-9
SPARE_IN0
J4-5
SPARE_IN1
J4-1
CAN_+12V
J2-4
CAN GND
J2-3
CAN-
J2-2
CAN+
J2-1
INPUT_0
J4-6
NOT_USED1
J4-3
GND_SIDE
J4-11
HALL_1_SIDE
J4-12
HALL_2_SIDE
J4-14
+5VDC_SIDE
J4-15
HALL_3_SIDE
J4-16
OPEN
J4-13
4
EXTEND LIMIT SW.
RETRACT LIMIT
BLU
BRN
BLK
RED
MTR-20
2
1
LEFT HEADLIGHT (LED)
LT-1
LT-5
5
3
2
IN-LINE FUSE-3
2A
6
LT-4
2
1
1
1
SW-13
PRESS NC, OPENS @ 20PSI +/-2PSI = FAULT
COM NC
NO
OHG FLASH/STROBE LIGHTLT-3
CB-7C
2.5A-REAR
CB-13
2.5A-FRONT
6
EC-H20 MODULE
VCC_1
J4-1
GND_1
J4-14
FLYBACK
J4-3
SIDE BR. VALVE
J4-5
NOT USED #1
J4-6
VCC_2
J4-2
GND_2
J4-13
SPGR_A
J5-1
SPGR_B
J5-2
CELL_A
J5-3
CELL_B
J5-4
FLUSH_GND
J5-6
FLUSH_SW
J5-5
PRESS_IN
J4-9
CAN+
J4-10
CAN-
J4-11
GND_3
J4-12
PUMP
J4-4
NOT USED #2
J4-7
OPEN1
J4-8
D-2
1
SW-12A
SIDE SCRUB ON/OFF SW.
8
6
4
1
5
2
RED TAILLIGHT (LED)
CB-3C
35A-REAR
3
WHT, BACK UP LIGHT (LED)
CB-9
2.5A-REAR
5
MTR-21
SIDE SCRUB MTR
+5VDC
4E
HALL_3
3E
HALL_1
1E
HALL_2
2E
OPEN2
5E
MTR_1/U
1
MTR_2/V
2
MTR_3/W
3
OPEN1
4
GND
6E
FLASH/STROBE LIGHT
LT-3
TELEMETRY MODULE
B+
P1-22
B+
P1-23
GND
P1-21
SHUNT+
P1-6
SHUNT-
P1-7
CAN+
P1-3
CAN-
P1-11
GND
P1-20
GND
P1-19
2
4
5
4
2
1
1
MTR-19
SIDE PUMP
2 1
SPRAY NOZZLE PUMP
MTR-23
1
6
SV-6: SIDE H2O VALVE
CB-16
2.5A
22
SW-15
SPRAY NOZZLE SWITCH
1
24
5
68
910
RIGHT HEADLIGHT (LED)
LT-2

T17 Service Information 9020167 (6-14) 2-7
GENERAL INFORMATION
ELECTRICAL SCHEMATIC SYMBOLS
1
2
2
1
+ -
+ -
Switched B+
From Buss Bar
Switched B+
B- From
Stando
B- From
Stando
S-5 Seat Switch (N.O.)
Amer
Encoder
Cable
C1 Capacitor (0.01Uf)
R1
(11 Ω/40W)
+ -
MTR
ecH2O
Pump
J3-2 Brush RT-
J3-5 Brush LT+
J3-6 Brush LT-
Right/Rear Brush
Left/Front* Brush
* Cylindrical = Uses Adaptor
ecH2O
Control
Module
T16
Control
Board
VCC_A
Alarm
Com N.C.
N.O.
S-14 Pressure Sw.
N.C. Opens @ 25 +/- 2 psi
Enable
GND_A
GND_B
Pressure IN
(ECH2O SW)
(ECH2O SW)
VCC_B
VCC_C
Pump
(SOL-A)
ecH2O Valve
Sparger
e-Cell
65EA/BLU
5EA/GRN
8EA/GRY
7EA/PUR
3EA/ORA
4EA/YEL
(SOL-B)
(SPA-A)
(SPA-B)
(CELL-A)
(CELL-B)
(LED GND)
(LED RED)
(LED GRN)
Squeegee
Actuator
Battery Positive +
Battery Negative -
D-8
FU2
100A
70/TAN
M4A
86 85
B+
J7-1 B+ Control
B-
Cable
8/GRY
FU1
100A
FU1
100A
102/BRN
Sweep OFF/Down = 2-1, 6-5
Sweep ON/Center = 2-3, 6-7
Vac & Sweep ON/Up = 3-4, 7-8
Cable
Pre-Sweep
Brush Relay
CB3 (2.5A)
CB19 (25A)
CB16 (15A)
J7-4 Sweep
Note:
ecH2O Enable:
J7-10 Low=Turn ON ecH2O
Note:
Pre-Sweep Enable:
J6-10 B+ = Sweep Enable ON
Sweep Enable J6-10
37/PUR
38/GRY
CB9 (2.5A) 79/WHT
CB10 (2.5A)
Note:
ecH2O Side Brush
J7-12 Low=SV3 H20 Valve ON
ecH2O Pump ON 100%
13/BLK
88/GRY
9EA/WHT
S-15
Flush Switch
13EA/BLK
21/PNK
Extend
Limit Sw.
22/BRN
MTR 26/BLU
25/GRN
2/BRN
Switched B+
From Buss Bar
Switched B+
From Buss Bar
Switched B+
To: CAN Open-
(J6-14)
To: Throttle
Sensor (GND)
To: Curtis 1234
(I/O GND)
To: CAN Open+
(J6-13)
To: Back-Up
Light Circuit
To: Back-Up
Alarm Circuit
80/TAN
PMC001
12
12
MTR
10 4
1
3
2
7
9
6-4
6-8
5
6
11
12
8
6-1
6-2
6-3
6-6
6-5
6-7
ON
OFF
6
2
8
5
4
1
FWD
REV
6
2
8
BA
5
4 J1-33
GND Cable
J1-34
J1-21
W/WHT
V/GRN
U/ORN
J1-3
J1-4
J1-13
J1-11
BLU2 J1-32
J1-26
J1-31
J1-7
J1-18 J1-15
66/BLU 61/PNK
62/BRN 12/BRN
17/PUR
Propel Motor Assembly
17/PUR
15/GRN
87/PUR
Temp Sender
Brake Solenoid
59/WHT
58GRY
RED1 WHT5 BLK6
YEL
T2
B1 B2
T1
YEL
J1-16 J1-35 J1-23
P1-C
BLU
YEL
P1-B
P1-D
BLK
P1-A
RED
J1-22
J1-9
J1-1
B+
J1-29
J1-28
J1-25
1
1
3
5
7
2
4
6
8
Pre-Sweep Switch
Sweep OFF/Down = 2-1, 6-5
Sweep ON/Center = 2-3, 6-7
Vac & Sweep ON/Up = 3-4, 7-8
1
3
5
7
2
4
6
8
M3B
MTR
MTR
MTR
MTR
FaST/ES Pump
D-9
D-6
D-7
D-12
67/PUR
64/YEL 81/PNK
Pre-Sweep
Vacuum Fan
LH Side Broom Motor
Main Broom Motor
13/BLK
13/BLK
65/GRN
65/GRN
65/GRN
68/GRY
69/WHT
D-11
30 87
M3A
Curtis 1234
Controller
PROG +
TX
RX
B+
KSI
INTERLOCK
FWD
FWD/REV Switch
Throttle Sensor
REV
B -
GND
B+
THROTTLE
BRAKE
CAN TERM L
CAN TERM H
U
DRV3
DRV4
DRV1 THERMISTOR I/O GND PHASE A PHASE B +5V DRV2
COIL RETURN
V
W
BRAKE IN
(0-5 vdc)
(0-5 vdc) THROTTLE
CAN L
8/GRY 8/GRY
18/GRY
16/BLU
94/YEL
9/WHT
11/PNK
14/YEL
58/GRY
58/GRY
CAN H
6 Volt
IGN
15
ACC
30
BAT T
75
50 Start
ST
To: Back-Up
Alarm Circuit
+ -
Com N.C.
N.O.
1
3
5
7
2
4
6
8
MTR MTR
M3B
30 87
M3B
30 87a
M3A
IGN ST
+ -
Note: Key Switch ON
Key Switch
Battery
DPDT Switch
Pressure Switch
Motor
3 Phase AC
Induction Motor
Motor Encoder
Momenary Switch N.O.
Contact Switch N.C.
Solenoid Valve
Sensor
(Variable Resistor)
Circuit Breaker
Fuse
Diode
Single Continuation Tab
Double Continuation Tab
Relay Coil
N.C. Relay Contacts
N.O. Relay Contacts
Horn or Alarm
Light
Connected
Not Connected
Connector
Energized
Adaptor Harness
Notes
Assembly
AC Plug
Capacitor
Electro-
Magnetic
Brake
Enabled (Applied)
• Key O
• Neutral - Ready State
• Brake Command
• Seat Switch Open
• Curtis 1234 Fault
(See Troubleshooting)
• Throttle Command
• Seat Switch Closed
Disabled (Released)
Operational Matrix:
Propel
Enabled
•Seat Switch Closed
• Foot Throttle
Command
• Fwd/Rev Switch Input
• Seat Switch Open
• Neutral-Ready State
• Brake Command
• Curtis 1234 Fault
Disabled
Operational Matrix:
* SV2 Water Valve Voltage
Range
Low 1-LED
2-LEDs
3-LEDs
1-LED
2-LEDs
3-LEDs
1-LED
2-LEDs
3-LEDs
20%
30%
45%
30%
55%
80%
55%
80%
100%
7.2 Volts
10.8 Volts
16.2 Volts
10.8 Volts
19.8 Volts
28.8 Volts
19.8 Volts
28.8 Volts
36 Volts
Med
(Default)
High
Level PWM% @ Nominal
36 VDC

2-8 T17 Service Information 9020167 (6-14)
GENERAL INFORMATION
OPERATIONAL MATRIX
Output Pin(s) Enable Input Disable Input
Vacuum Fan,
Scrubbing
Water PU
Module:
Fan #1
J7-1, J7-2
Fan #2
J7-3, J7-4
1-STEP Scrub On Interface
Module
1-STEP Scrub O Interface
Module
Squeegee/Vacuum On Interface
Module
Squeegee/Vacuum
O
Interface
Module
Recovery Tank Full Water PU
Module, J6-
10 Low
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module
Rear Squeegee
Down
Water PU
Module:
J6-17, J6-18
1-STEP Scrub On Interface
Module
1-STEP Scrub O Interface
Module
Squeegee/Vacuum On Interface
Module
Squeegee/Vacuum
O
Interface
Module
Reverse Propel Curtis PMC,
J1-33 High
Recovery Tank Full Water PU
Module, J6-
10 Low
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module
Main Scrub Brushes Scrub Mod-
ule:
Right Motor
J10-1, J10-2,
J10-3, J9-1,
J9-2, J9-3,
J9-4, J9-5
Left Motor
J11-4, J11-5,
J11-6, J9-6,
J9-7, J9-8,
J9-9, J9-10
1-STEP Scrub On Interface
Module
1-STEP Scrub O Interface
Module
Fwd/Rev Throttle Com-
mand
Curtis PMC,
J1-6 ≈
0.2-5 vDC
Neutral - Ready State Curtis PMC,
J1-6 ≈ 0 Vdc
Recovery Tank Full Water PU
Module, J6-
10 Low
Solution Tank Empty Scrub Mod-
ule, J4-1 ≈ <
0.73 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module

T17 Service Information 9020167 (6-14) 2-9
GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output Pin(s) Enable Input Disable Input
Scrub Head Down Scrub Mod-
ule:
J4-9, J4-10
1-STEP Scrub On Interface
Module
1-STEP Scrub O Interface
Module
Fwd/Rev Throttle Com-
mand
Curtis PMC,
J1-6 ≈
0.2-5 vDC
Neutral - Ready State Curtis PMC,
J1-6 ≈ 0 Vdc
Recovery Tank Full Water PU
Module, J6-
10 Low
Solution Tank Empty Scrub Mod-
ule, J4-1 ≈ <
0.73 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module
Side Brush Extend/
Down
(Option)
Side Scrub
Module:
J4-7, J4-8
1-STEP Scrub On Interface
Module
1-STEP Scrub O Interface
Module
Side Brush Switch On Side Scrub
Module, J4-6
Ground
Side Brush Switch O Side Scrub
Module, J4-6
Not Grounded
Recovery Tank Full Water PU
Module, J6-
10 Low
Solution Tank Empty Scrub Mod-
ule, J4-1 ≈ <
0.73 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module

2-10 T17 Service Information 9020167 (6-14)
GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output Pin(s) Enable Input Disable Input
Side Scrub Brush
Motor
(Option - Non Pre-
Sweep)
Side Scrub
Module:
Motor
J6-1, J6-2,
J6-3, J4-11,
J4-12, J4-13,
J4-14, J4-15
1-STEP Scrub On Interface
Module
1-STEP Scrub O Interface
Module
Side Brush Switch On Side Scrub
Module, J4-6
Ground
Side Brush Switch O Side Scrub
Module, J4-6
Not Grounded
Fwd/Rev Throttle Com-
mand
Curtis PMC,
J1-6 ≈
0.2-5 vDC
Neutral - Ready State Curtis PMC,
J1-6 ≈ 0 Vdc
Recovery Tank Full Water PU
Module, J6-
10 Low
Solution Tank Empty Scrub Mod-
ule, J4-1 ≈ <
0.73 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module
Solution Control
(Conventional)
Scrub Mod-
ule:
Main Valve
J4-17
Side Scrub
Module
(Option):
Side Pump
J4-10
Side Valve
J4-9
1-STEP Scrub On Interface
Module
1-STEP Scrub O Interface
Module
Solution Control On Interface
Module
Solution Control O Interface
Module
Fwd/Rev Throttle Com-
mand
Curtis PMC,
J1-6 ≈
0.2-5 vDC
Neutral - Ready State Curtis PMC,
J1-6 ≈ 0 Vdc
Side Scrub Switch On
(Option)
Side Scrub
Module, J4-6
≈ Grounded
Side Scrub Switch O
(Option)
Side Scrub
Module,
J6-10 ≈ Not
Grounded
Recovery Tank Full Water PU
Module, J6-
10 Low
Solution Tank Empty Scrub Mod-
ule, J4-1 ≈ <
0.73 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module

T17 Service Information 9020167 (6-14) 2-11
GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output Pin(s) Enable Input Disable Input
Solution Control
ec-H2O
(Option)
ec-H2O
Module:
Side Br.
Valve
J4-5
Pump
J4-4
Sparger
J5-1, J5-2
e-Cell
J5-3, J5-4
1-STEP Scrub On Interface
Module,
CAN-Bus
1-STEP Scrub O Interface
Module,
CAN-Bus
Solution Control On Interface
Module,
CAN-Bus
Solution Control O Interface
Module,
CAN-Bus
ec-H2O Button On Interface
Module,
CAN-Bus
ec-H2O Button O Interface
Module,
CAN-Bus
Fwd/Rev Throttle Com-
mand
Curtis PMC,
J1-6 ≈
0.2-5 vDC
Neutral - Ready State Curtis PMC,
J1-6 ≈ 0 Vdc
Recovery Tank Full Water PU
Module, J6-
10 Low
Solution Tank Empty Scrub Mod-
ule, J4-1 ≈ <
0.73 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
ec-H2O System Fault
(see ec-H2O system
troubleshooting)
ec-H2O
Module to
CAN-Bus
Circuit Fault CAN-Bus to
Interface
Module
Flush Mode ec-H2O Mod-
ule, J5-5 and
J5-6 = Closed
System Over Pressure
(≈> 20 psi)
ec-H2O Mod-
ule, J4-9 =
Not Grounded
Severe Environment
Mode
Scrub Mod-
ule, J4-8 Low
or J4-7 Low

2-12 T17 Service Information 9020167 (6-14)
GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output Pin(s) Enable Input Disable Input
ES (Extended Scrub)
Pump
(Option)
NOTE: 45 seconds/10
seconds O until
recovery tank is less
than 1/2 full and solu-
tion tank is not full.
Water PU
Module:
Water Pump
J6-13, J6-14
1-STEP Scrub On Interface
Module,
CAN-Bus
1-STEP Scrub O Interface
Module,
CAN-Bus
Solution Control On Interface
Module,
CAN-Bus
Solution Control O Interface
Module,
CAN-Bus
ES Button On Interface
Module,
CAN-Bus
ES Button O Interface
Module,
CAN-Bus
Recovery Tank 1/2 Full Water PU
Module, J6-9
= Ground
Recovery Tank Full Water PU
Module, J6-
10 = Ground
Solution Tank Not Full Scrub Mod-
ule, J4-1 ≈ <
1.34 Vdc
Solution Tank Full Scrub Mod-
ule, J4-1 ≈ >
1.34 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module
ES Detergent Pump:
(Option)
NOTE: Does not oper-
ate on 1 solution level
LED.
Scrub Mod-
ule:
Detergent
Pump
J4-14
1-STEP Scrub On Interface
Module,
CAN-Bus
1-STEP Scrub O Interface
Module,
CAN-Bus
Solution Control On
(2 or 3 Solution LEDs
On)
Interface
Module,
CAN-Bus
Solution Control O
(including 0 or 1 solu-
tion LEDs On)
Interface
Module,
CAN-Bus
ES Button On Interface
Module,
CAN-Bus
ES Button O Interface
Module,
CAN-Bus
Fwd/Rev Throttle Com-
mand
Curtis PMC,
J1-6 ≈
0.2-5 vDC
Neutral - Ready State Curtis PMC,
J1-6 ≈ 0 Vdc
Recovery Tank Full Water PU
Module, J6-
10 = Ground
Solution Tank Empty Scrub Mod-
ule, J4-1 ≈ <
0.73 Vdc
Low Battery Voltage Curtis PMC
Module, J1-1
≈ < 32 Vdc
Circuit Fault CAN-Bus to
Interface
Module